The NZXT C1500 Platinum is the objective winner of this comparison, securing more individual specification victories than the Corsair HX1500i. While both power supplies share identical ratings across the majority of their technical fields, the NZXT C1500 Platinum holds a significant lead in connectivity. Its most impactful advantage is the inclusion of SATA connectors, which provide a 50% increase in capacity compared to the Corsair HX1500i, offering superior support for systems requiring extensive storage or peripheral configurations.

Users prioritizing maximum connectivity for complex builds with numerous SATA-based devices should select the NZXT C1500 Platinum to take advantage of its superior connector count. Conversely, the Corsair HX1500i is the more suitable choice for budget-conscious builders who do not require additional SATA ports, as it maintains an 8% advantage in MSRP. Choosing between these two units depends entirely on whether your specific system architecture demands higher peripheral expansion or a lower initial acquisition cost.